A suspected auto thief shot dead by Daly City police after he allegedly pulled a gun on officers at the end of a chase into San Francisco was identified Monday as 23-year-old Aaron Sawyer.

A Daly City officer spotted Sawyer, whose city of residence hadn't been confirmed, behind the wheel of a stolen car about 12:30 a.m. Saturday and chased him into San Francisco, authorities said.

The officer and others from Daly City stopped their pursuit on Interstate 280 at Highway 101, but San Francisco officers then located the car on San Bruno Avenue and began following it.

Sawyer and a passenger abandoned the car at Hester Avenue and Bayshore Boulevard in San Francisco's Visitacion Valley neighborhood. The passenger quickly surrendered to police, but Sawyer fled on foot with a gun, police said.

When Daly City and San Francisco officers approached Sawyer, he raised the gun at the officers, prompting a Daly City officer to shoot him in the torso, police said.

Sawyer was one of five people killed since Thursday in confrontations Bay Area law-enforcement officers.

Alleged kidnapper Richard Shreckengaust, 37, of Marin County was shot by a Sonoma County sheriff's deputy at the end of a chase Thursday night. The names of three men who died after police shootings in San Jose, Union City and Hayward haven't been released.